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Data describing the shape and manner in which the cone of depression forms about a well discharging at a constant rate are used with various formulas to determine the hydraulic characteristics of aquifer materials. The solutions to these formulas generally are graphical and may be used to detect the presence of hydraulic or geologic boundaries to the aquifer.
pumping test, aquifers, permeability, soil (material), hydraulics, transmissibility, water wells, capillarity
Lang, S. M.
Chief, U.S. Geological Survey, Washington, D. C.